GCSE Edexcel Probability - Edexcel Tree diagrams Probabilities can be written as fractions, decimals or percentages on a scale from 0 to 1.

If a dice was to be rolled twice, the tree diagram would look like this: There are four possible outcomes. To work out the probabilities of each total outcome, multiply the probabilities together.

To learn from a text, students must make meaningful connections among related ideas in that text. This study examined the effectiveness of two methods of improving connections—elaborative ...